Hot Bimmer!!! - BMW Forum - BimmerWerkz.com
5-Series (E12,E28, E34, E39, E60) Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)

 
LinkBack Thread Tools Display Modes
#1 (permalink) Old 10-22-2004, 02:05 PM
n00b
 
Join Date: Apr 2004
Posts: 6
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
jnejman is an unknown quantity at this point
(Thread Starter)
Hi,
I own 2001 530i and recently I have noticed that my temperature gage is going awfully close to red zone. It even went over to red zone so I sopped the car and shut off the engine to let it cool off.
Checked the antifreeze level, it is OK. Now when I drive it seems to be very sporadic, when it gets too close to red I just turn on the heat and it goes back to the middle of the gage like it should, and it stays there as long and heat is on.
What do you guys think that might be?

Any advice would be appreciated
jnejman is offline  
Sponsored Links
Advertisement
 
#2 (permalink) Old 10-22-2004, 02:48 PM
/Banned
 
xsperf's Avatar
 
Join Date: Aug 2004
Posts: 963
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
xsperf is an unknown quantity at this point
it doesnt really have anything to do with the heat, if any car heats up, u turn on the heater, the engine temp. drops.

maybe its ur thermostat.. i dont believe it would be ur radiatior.. unless u are in an extremely cold area and ur mixture isnt very good and the antifreeze may have frozen.

is this EVERY time u drive?
xsperf is offline  
#3 (permalink) Old 10-22-2004, 03:15 PM
Millions of them.
 
Torque's Avatar
 
Join Date: Dec 2003
Location: USA
Posts: 14,878
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Torque has a reputation beyond repute Torque has a reputation beyond repute Torque has a reputation beyond repute Torque has a reputation beyond repute Torque has a reputation beyond repute Torque has a reputation beyond repute Torque has a reputation beyond repute Torque has a reputation beyond repute Torque has a reputation beyond repute Torque has a reputation beyond repute Torque has a reputation beyond repute
replace thermostat, bleed the air out of the system... if that doesnt help, your fan is probably not coming on and that could be a dead fan clutch, or some electronic problem...

Torque is offline  
#4 (permalink) Old 10-22-2004, 03:22 PM
n00b
 
Join Date: Apr 2004
Posts: 6
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
jnejman is an unknown quantity at this point
(Thread Starter)
temperature is fine for about 20 min from the start. Then it starts creeping slowly. I usually turn on the heat up and then it goes back to normal in 5 seconds after heat is turned on.
???

used
jnejman is offline  
#5 (permalink) Old 10-22-2004, 05:46 PM
5th Gear Member
 
Join Date: Jul 2004
Posts: 1,028
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
BeelZibub is an unknown quantity at this point
Quote:
Originally posted by jnejman@Oct 22 2004, 08:22 PM
temperature is fine for about 20 min from the start. Then it starts creeping slowly.* I usually turn on the heat up and then it goes back to normal in 5 seconds after heat is turned on.
???

used
[snapback]216259[/snapback]
Excuse me if I make a few typo's in this post - It's 10.50 on friday evening and I have just drunk 2 bottles of wine and half a ltire of rum.

I would guess a dodgy thermostat or perhaps a faulty fan switch.

The reason turning up the heat eleviates the problem is as follows:-

The cooling system of the car extends into the cabin behind the dash and console and the hot water from the engine is run through a "Heater Matrix", which is basically a mini radiator. The heating system blows air from a fan through the heater matrix and into the venting system - this is how the air is heated and is just a smaller version of the main radiator, which means turning up the heat will have a cooling effect on the cars coolant system. I had a cavalier which in summer I had to drive around with the windows and sunroof open and the heater on full blast/fan to stop her from overheating (I have covered over 120 miles in one journey like this) because my fan switch was buggered - IE. when I was sitting in traffic and the temp rose there was no cooling, turn on the heater fan and hey presto the heater matrix acted as a mini radiator and was enough to disperse the heat (sweated like buggery though). If you are in a hot climate at present and the fans does not come on (there is an aux one as well) it may just be a fuse to the fan or at most the fan switch.

At least the fact that the heater is cooling the system proves you have a good flow through the cooling system - that elimintes air bubbles blocking the system.

Hope youo get her sorted.

BLZ
BeelZibub is offline  
#6 (permalink) Old 10-23-2004, 02:27 AM
n00b
 
Join Date: Oct 2004
Location: Atlanta, Ga.
Posts: 9
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Alin10123 is an unknown quantity at this point
Quote:
Originally posted by BeelZibub+Oct 22 2004, 05:46 PM--><div class='quotetop'>QUOTE(BeelZibub @ Oct 22 2004, 05:46 PM)</div><div class='quotemain'><!--QuoteBegin-jnejman@Oct 22 2004, 08:22 PM
temperature is fine for about 20 min from the start. Then it starts creeping slowly.* I usually turn on the heat up and then it goes back to normal in 5 seconds after heat is turned on.
???

used
[snapback]216259[/snapback]
Excuse me if I make a few typo's in this post - It's 10.50 on friday evening and I have just drunk 2 bottles of wine and half a ltire of rum.

I would guess a dodgy thermostat or perhaps a faulty fan switch.

The reason turning up the heat eleviates the problem is as follows:-

The cooling system of the car extends into the cabin behind the dash and console and the hot water from the engine is run through a "Heater Matrix", which is basically a mini radiator. The heating system blows air from a fan through the heater matrix and into the venting system - this is how the air is heated and is just a smaller version of the main radiator, which means turning up the heat will have a cooling effect on the cars coolant system. I had a cavalier which in summer I had to drive around with the windows and sunroof open and the heater on full blast/fan to stop her from overheating (I have covered over 120 miles in one journey like this) because my fan switch was buggered - IE. when I was sitting in traffic and the temp rose there was no cooling, turn on the heater fan and hey presto the heater matrix acted as a mini radiator and was enough to disperse the heat (sweated like buggery though). If you are in a hot climate at present and the fans does not come on (there is an aux one as well) it may just be a fuse to the fan or at most the fan switch.

At least the fact that the heater is cooling the system proves you have a good flow through the cooling system - that elimintes air bubbles blocking the system.

Hope youo get her sorted.

BLZ
[snapback]216308[/snapback]
[/b][/quote]

I think it's your fan not working. Because when you turn on your heater, the heater has it's own fan. So... since the heat comes from the engine, that's what is realeasing the heat. So... make sure your fan works and comes on.
Alin10123 is offline  
Sponsored Links
Advertisement
 
Reply

  BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 5-Series (E12,E28, E34, E39, E60)


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Hot pic.. had to share... 97alpineM3 Picture Showroom 3 10-26-2005 03:17 AM
Fuel Issue. Cloxe 3-Series (E36) 10 10-02-2005 04:12 PM
My New Bimmer!!! bmw328iblack 3-Series (E46, E90) 1 07-25-2005 02:04 PM
Just got in my new bimmer!!! the///man 3-Series (E36) 27 09-01-2003 10:26 PM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome